07/31/98 - Sebring Mediterranean Fruit Fly Update - DACS

Provided by Dr. Marion Fuller
Florida Department of Agriculture and Consumer Services (FDACS)

Report Dated 07/31/98

Sebring

Fly count: No flies were detected yesterday. The count is 118 since the initial find on July 9th, and the last fly picked up on the 26th.

Traps: There are 4141 traps deployed in a 207 square mile survey area: 3358 Jackson, 210 McPhail, and 573 yellow panels.

Treatment: Ground crews continue to apply malathion bait to buffer areas. The third aerial treatment for the northern block and the second aerial treatment for the grove areas of the southern block are scheduled to begin tomorrow morning (August 1) at daybreak. Treatment should be completed by 1:00 pm, weather permitting.

Environmental Monitoring: The following results are from samples collected associated with last week's (July 24) treatments:
Pre Post

Lake Sebring BDL (Below Detection Level) 0.64 ppb

Dinner Lake BDL 1.9 ppb

Little Red 0.1 - 0.3 ppb* 0.29 ppb*

Denton BDL 0.1 - 0.3 ppb*

Little Bonnet BDL 0.1 - 0.3 ppb*

Jackson Canal BDL 0.1 - 0.3 ppb*

Red Beach Lake BDL BDL

* Between the minimum detection limit (MDL) of 0.1 ppb and the limit of quantitation (PQL) of 0.3 ppb.

All samples were BDL for malaoxon. The MDL for malaoxon is 0.1 ppb

The following results are from drift card samples taken during the same treatment event:

Dinner Lake: BDL at waters edge; positive at 50 meters (trace), 100 meters and 150 meters from water's edge.
Little Red: Positive (trace) at waters edge, 50 m (trace), 100 meters (trace), and 150 meters from water's edge.
Red Beach Lake: All samples BDL

Ground spray exclusion area: Positive (trace) at north and southeast boarder; BDL at northeast and southwest boarder. (This area was treated by ground within five days prior to the aerial treatment. Because of a 5 day treatment interval, it was excluded from the first aerial treatment. It will be included in tomorrow's treatment.)

Health monitoring: Department of Health has received a total of 5 health related calls.

FDACS - Division of Plant Industy: Mediterranean fruit fly information
USDA APHIS: Mediterranean fruit fly information
UF/IFAS Fact Sheet ENY-809: The Mediterranean Fruit Fly
UF/IFAS Fact Sheet ENY-626: Mediterranean Fruit Fly: What Floridians Need To Know

The UF/IFAS Pest Alert WWW site is at: http://pestalert.ifas.ufl.edu/

	Pre	Post
Lake Sebring	BDL (Below Detection Level)	0.64 ppb
Dinner Lake	BDL	1.9 ppb
Little Red	0.1 - 0.3 ppb*	0.29 ppb*
Denton	BDL	0.1 - 0.3 ppb*
Little Bonnet	BDL	0.1 - 0.3 ppb*
Jackson Canal	BDL	0.1 - 0.3 ppb*
Red Beach Lake	BDL	BDL